danw
Lifetime Supporting Member
I need to drill a single hole (to pass a 1/2" NPTM pipe nipple) in a stainless panel/enclosure (already installed in the field, not in a shop).
Suggestions for a drill technique/tool?
I suspect a bi-metal hole saw might not drill all the way through before it dulls.
Web reviews on the carbide tipped hole saws at Home Depot have terrible reviews.
The guy at the local tool house suggested a cobolt twist drill but my experience with large diameter twist drills in sheet metal is frustration when the cutting edge digs in and gouges the sheet metal.
Suggestions for a drill technique/tool?
I suspect a bi-metal hole saw might not drill all the way through before it dulls.
Web reviews on the carbide tipped hole saws at Home Depot have terrible reviews.
The guy at the local tool house suggested a cobolt twist drill but my experience with large diameter twist drills in sheet metal is frustration when the cutting edge digs in and gouges the sheet metal.